ELI5: What are Cable Locks?
Just like chaining your bike to a rack so nobody walks off with it, a cable lock attaches a laptop to a desk with a steel cord. It keeps people from grabbing the computer and running.
Definition
Cable locks are physical security devices that attach to a laptop or piece of equipment via a Kensington-style security slot and anchor it to a fixed object (desk, furniture) with a steel cable and lock. They prevent opportunistic theft of devices in shared or public environments such as offices, libraries, conferences, and co-working spaces.
Key Details
- Most laptops and many monitors include a Kensington Security Slot (K-slot) for cable lock attachment.
- Provides a deterrent and preventive physical control—not designed to resist determined, tool-equipped attackers.
- Important in environments where employees work with laptops in open areas or travel frequently.
- Should be combined with full disk encryption (e.g., BitLocker) to protect data if a device is stolen despite the lock.
- Some organizations use asset tagging and cable locks together as a layered physical security approach.
Connections
- Parent: physical-security — a physical device security control
- See also: secure-areas